Following on the heels of our science from last week, this week we talked about the topic of 'Gravity'. Again, I don't go in depth with these subjects. This is really just an introduction of science that will be covered more heavily in higher grades. We're 'getting our feet wet' so to say.
Each of these books had a small section on gravity which I used to give a definition of what it is and what it does; a force that causes objects fall down when dropped and the force that hold us to the earth.
'The Kids' Science Book' gives an activity to show that gravity pulls all objects downward at the same speed, regardless of their weight. So we tried it. The activity is meant to be used with partners, but in our case, I used the power of the cell phone! I videoed to activity and let her watch it to see what happened. So, to begin, I had J stand in a chair holding a grape in one hand and an apple in the other.
Then, I turned the camera on and instructed to her drop them both at the same time. Then we watched the video back to see if, in fact, they both hit the ground at the same time. THEY DID!
The next activity we tried next was to feel the pull that gravity has. I had J hold her hand out, palm up. I then held the apple about a foot above her hand. I turned on the video once again to capture what happened. I dropped the apple on her hand, causing her hand to feel the pull of gravity from the apple thus making her hand go down. We talked about how heavier objects it the ground harder than lighter objects, just like a heavy apple caused her hand to be pulled down more than a grape would. Here's the video from that experiment.
I hope you have enjoyed our mini study on 'Gravity'!! Next, in our science series is Friction.
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